A Survey on Acquisition, Tracking, and Pointing Mechanisms for Mobile Free-Space Optical Communications

Yagiz Kaymak, Roberto Rojas-Cessa, Jianghua Feng, Nirwan Ansari, Mengchu Zhou, Tairan Zhang

Research output: Contribution to journalReview articlepeer-review

94 Scopus citations

Abstract

This paper presents a comprehensive survey on acquisition, tracking, and pointing (ATP) mechanisms used in free-space optical (FSO) communications systems. ATP mechanisms are a critical component for a wide variety of use cases of mobile FSO communications. ATP mechanisms are used to align an FSO transmitter and receiver to attain line-of-sight, which is required for effective operation of FSO communications. Transceiver motion is not only associated to mobile stations but also to temporary displacements experienced by stationary FSO terminals, such as in building-to-building FSO communications. This survey categorizes ATP mechanisms according to their working principles, use cases, and implementation technology. This paper also discusses advantages and disadvantages of the surveyed ATP mechanisms, and presents a discussion on challenges and future research.

Original languageEnglish (US)
Pages (from-to)1104-1123
Number of pages20
JournalIEEE Communications Surveys and Tutorials
Volume20
Issue number2
DOIs
StatePublished - Apr 1 2018

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Free-space optical communications
  • acquisition
  • free-space optics
  • line-of-sight
  • mobile stations
  • optical wireless
  • tracking and pointing

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